* {
    margin: 0;
    padding: 0;
    text-decoration: none;
}
body {
    display: flex;
    flex-direction: column;
    height: 100vh;
    font-size: 14px;
    font-weight: 300;
    background: #fff;
    font-family: Montserrat, sans-serif;
}
body header {
    display: flex;
    position: relative;
    flex-direction: row;
    border-bottom: solid 1px #000;
}
body header .left {
    min-width: 100px;
    text-align: center;
    text-decoration: none;
}
body header .left .select {
    padding: 10px 15px;
    font-size: medium;
    cursor: pointer;
    text-decoration: none;
    color: black;
}
body header .left .icon {
    font-size: 1.75em;
    color: #000;
}
body header .mid {
    flex: 1;
    display: flex;
    align-items: center;
    /*定义body的元素垂直居中*/
    justify-content: center;
}
body header .mid span {
    font-size: 1.5em;
    font-weight: bold;
}
body header .right {
    min-width: 200px;
    display: flex;
    align-items: center;
    /*定义body的元素垂直居中*/
    justify-content: center;
    border-left: solid 1px #000;
}
body header .right .bt-try {
    position: relative;
    overflow: hidden;
    transition: width 0.3s ease-in-out;
}
body header .right a {
    color: #000;
    text-decoration: none;
    transition: color 0.3s ease-in-out;
}
body header .right .button {
    position: relative;
    display: inline-block;
    width: 225px;
    height: 100%;
    background-color: #fff;
    color: #000;
    line-height: 63px;
    text-align: center;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    border: none;
    overflow: hidden;
    transition: all 0.3s ease-in-out;
}
body header .right .button span {
    position: relative;
    z-index: 1;
}
body header .right .button:hover {
    background: #4737ff;
    color: #fff;
    border-left: none;
}
body header .right:hover {
    border-left: none;
}
body header .logo-header {
    display: block;
    position: absolute;
    top: 25%;
    left: 44%;
    width: auto;
    height: 23px;
    line-height: normal;
    cursor: pointer;
}
body main {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
}
body main .main-left {
    padding: 55px 20px 20px 100px;
    display: flex;
    align-items: center;
    /*定义body的元素垂直居中*/
    justify-content: center;
}
body main .main-left img {
    width: 30vw;
}
body main .main-right {
    padding: 20px 40px;
    width: 45vw;
}
body main .main-right h1 {
    font-size: 3.1em;
    color: #4737ff;
    line-height: 1em;
    padding: 55px 20px 20px 20px;
    font-weight: normal;
}
body main .main-right p {
    font-size: 1.6em;
    color: #000;
    padding: 20px;
    font-weight: normal;
}
body main .main-right .explain {
    padding: 20px;
    font-size: 1.5em;
}
body main .main-right .explain .one {
    color: rgba(39, 143, 57, 0.87);
}
body main .main-right .explain .two {
    color: #d63737;
}
body main .main-right .explain .three {
    color: #aaaaaa;
}
body main .main-right .explain .four {
    color: #5f5f5f;
}
body .btn-try {
    width: 100%;
    padding: 100px 0px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;

}
body .btn-try span {
    border-radius: 30px;
    background: #4737ff;
    display: inline-block;
    width: 200px;
    height: 50px;
    text-align: center;
    font-size: 1.5em;
    color: #fff;
    font-weight: bold;
    margin-left: 10px;
    line-height: normal;
    padding: 10px 20px;
    cursor: pointer;
    transition: all 0.3s ease-in-out;
    display: flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;

}
body .btn-try span:hover {
    background: #fff;
    color: #4737ff;
}
body .words {
    width: 60%;
    padding: 100px 200px;
    margin: 0 auto;
    border-top: solid 1.5px #000;
}
body .words .why {
    text-align: center;
    padding-bottom: 60px;
    font-size: 2em;
    font-weight: bold;
}
body .words .why span {
    padding: 10px;
    border: solid 2px #000;
}
body .words p {
    text-align: center;
    font-size: 1.5em;
    font-weight: normal;
}
body footer {
    display: flex;
    flex-direction: row;
    justify-content: space-around;
    background: #ededfc;
    padding: 40px 80px;
}
body footer .info-left {
    display: flex;
    justify-content: center;
    align-items: center;
}
body footer .info-left .logo {
    width: 40vw;
    height: 60px;
    position: relative;
    display: flex;
    justify-content: center;
    align-content: center;
}
body footer .info-left .logo .logo-left {
    width: 35%;
    border-right: solid #000 1px;
    display: flex;
    justify-content: center;
    align-items: center;
}
body footer .info-left .logo .logo-left svg {
    padding-top: 20px;
}
body footer .info-left .logo .logo-right {
    width: 35%;
    display: flex;
    justify-content: center;
}
body footer .info-left .logo .logo-right svg {
    padding-left: 15px;
    padding-top: -20px;
}
body footer .info {
    width: 40%;
    display: flex;
    flex-direction: column;
}
body footer .info .guanslab {
    padding-bottom: 10px;
}
body footer .info .guanslab h1 {
    font-size: 1.6em;
}
body footer .info .guanslab p {
    font-size: 1em;
}
body footer .info .contact {
    padding-top: 25px;
    font-size: 1.3em;
}

 .content {
     display: flex;
     align-items: center;
     justify-content: center;
     padding: 20px;
 }
